Product A has product B as a cross sell option and no upsell option.
As expected, Product A displays product B as a linked product. But it also displays product C (which itself has product A as an upsell option).
Is this default behavior or a bug? I dont think upsell should be bi-directional. Cross-sell MAYBE, but upsell should be one way (Product C should not be displayed on Product A's page)